Linear adjustable drive for e.g. deceleration of wind force wings in wind-power plant, has cage movable in axial direction so that threaded spindle is adjustable between two end positions, where spindle is connected with adjusting rod

摘要

The drive (1) has a planetary roller screw drive standing in operative connection with an electric motor and comprising a threaded spindle (5) and a housing (9) coupled with each other by a cage (6). The cage has threaded roller bodies arranged in a circumferential direction of the spindle in a distributed manner. The spindle is partially connected with an adjusting rod. The housing has an inner thread (8) at which the roller bodies stand in threaded-engagement with the housing. The cage is movable in an axial direction so that the spindle is adjustable between two end positions.